The IIS web server that runs ActiveSync can have limits on how much data you can push to it in one transaction. These limits really vary from company to company, you may want to ask IT what kind of data limits they have set in place. It may be that you can only send a certain size document such as 10MB before you get "cut off" so to speak. A workaround could be to make sure you only send one attachment at a time per email, thus allowing the server to take those attachments one at a time instead of bundled as a group.
Imported Document ID: TECH222523
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